Once had a lucid dream about a big dream convention full of people collectively dreaming. Hung out with some cool people who told me that the "convention" is always going on, but it's hard to get to unless you know how to dream about it.

This group of "dreamers" told me to look closely around the building we were in, and to think about the interior of the building when I'm falling asleep to bring myself back. They also warned me that it was impossible to share personal details with each other because we'll never remember those parts when we wake up.

After a while I was warned that if I didn't wake up soon, I might not remember this dream and I might not be able to try to come back. They gave me a drink that I was told would wake me up immediately, which it did.

I remember everything vividly, except for anything identifiable about anyone I met.

I have never been back, not for lack of trying. It was a pretty standard hotel convention center environment. I think about it before bed now and then and hope I find myself back there. Maybe I go all the time and dream-me never thinks to get that super-helpful drink that woke me up last time...